Nigella Lawson served up a delicious Christmas Martini on Nigella: At My Table.
The ingredients are: ice cubes, 50ml vodka, 25ml Chambord, 25ml cocoa liqueur (such as Creme de cacao blanc) and 1 sprig rosemary.
See the recipe in Nigella’s new book titled: At My Table: A Celebration of Home Cooking, available from Amazon now.